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<div id="overview"><a href="../../../../../apidocs/com/googlecode/npuzzle/controller/GAEncogController.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * To change this template, choose Tools | Templates</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> * and open the template in the editor.</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <strong class="jxr_keyword">package</strong> com.googlecode.npuzzle.controller;
<a class="jxr_linenumber" name="6" href="#6">6</a>   
<a class="jxr_linenumber" name="7" href="#7">7</a>   <strong class="jxr_keyword">import</strong> com.googlecode.npuzzle.logic.Command;
<a class="jxr_linenumber" name="8" href="#8">8</a>   <strong class="jxr_keyword">import</strong> com.googlecode.npuzzle.logic.PuzzleState;
<a class="jxr_linenumber" name="9" href="#9">9</a>   <strong class="jxr_keyword">import</strong> com.googlecode.npuzzle.logic.genetic.PuzzleAlgorithm;
<a class="jxr_linenumber" name="10" href="#10">10</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a class="jxr_linenumber" name="11" href="#11">11</a>  <strong class="jxr_keyword">import</strong> java.util.LinkedList;
<a class="jxr_linenumber" name="12" href="#12">12</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a class="jxr_linenumber" name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> java.util.Random;
<a class="jxr_linenumber" name="14" href="#14">14</a>  
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_javadoccomment"> * @author thiago</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../com/googlecode/npuzzle/controller/GAEncogController.html">GAEncogController</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../com/googlecode/npuzzle/controller/BaseController.html">BaseController</a> {
<a class="jxr_linenumber" name="20" href="#20">20</a>  
<a class="jxr_linenumber" name="21" href="#21">21</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> GENE_SIZE = 30;
<a class="jxr_linenumber" name="22" href="#22">22</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> POPULATION_SIZE = 1500;
<a class="jxr_linenumber" name="23" href="#23">23</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong> MUTATION_PERCENT = 0.08;
<a class="jxr_linenumber" name="24" href="#24">24</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong> PERCENT_TO_MATE = 0.25;
<a class="jxr_linenumber" name="25" href="#25">25</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong> MATING_POPULATION_PERCENT = 0.8;
<a class="jxr_linenumber" name="26" href="#26">26</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> MAX_SAME_SOLUTION = 25;
<a class="jxr_linenumber" name="27" href="#27">27</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> CUT_LENGTH = GENE_SIZE / 5;
<a class="jxr_linenumber" name="28" href="#28">28</a>  
<a class="jxr_linenumber" name="29" href="#29">29</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../com/googlecode/npuzzle/controller/GAEncogController.html">GAEncogController</a>(<a href="../../../../com/googlecode/npuzzle/logic/PuzzleState.html">PuzzleState</a> initialState) {
<a class="jxr_linenumber" name="30" href="#30">30</a>          <strong class="jxr_keyword">super</strong>(initialState);
<a class="jxr_linenumber" name="31" href="#31">31</a>      }
<a class="jxr_linenumber" name="32" href="#32">32</a>  
<a class="jxr_linenumber" name="33" href="#33">33</a>      @Override
<a class="jxr_linenumber" name="34" href="#34">34</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> startSolving() {
<a class="jxr_linenumber" name="35" href="#35">35</a>          solving = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="36" href="#36">36</a>          List&lt;Command&gt; commands = geneticCommands(initialState);
<a class="jxr_linenumber" name="37" href="#37">37</a>          <strong class="jxr_keyword">for</strong> (Command command : commands) {
<a class="jxr_linenumber" name="38" href="#38">38</a>              bufferCommand.add(command);
<a class="jxr_linenumber" name="39" href="#39">39</a>          }
<a class="jxr_linenumber" name="40" href="#40">40</a>          solving = false;
<a class="jxr_linenumber" name="41" href="#41">41</a>      }
<a class="jxr_linenumber" name="42" href="#42">42</a>  
<a class="jxr_linenumber" name="43" href="#43">43</a>      <strong class="jxr_keyword">private</strong> List&lt;Command&gt; geneticCommands(<a href="../../../../com/googlecode/npuzzle/logic/PuzzleState.html">PuzzleState</a> initialState) {
<a class="jxr_linenumber" name="44" href="#44">44</a>          <a href="../../../../com/googlecode/npuzzle/logic/genetic/PuzzleAlgorithm.html">PuzzleAlgorithm</a> genetic = <strong class="jxr_keyword">new</strong> <a href="../../../../com/googlecode/npuzzle/logic/genetic/PuzzleAlgorithm.html">PuzzleAlgorithm</a>(
<a class="jxr_linenumber" name="45" href="#45">45</a>                  initialState,
<a class="jxr_linenumber" name="46" href="#46">46</a>                  POPULATION_SIZE,
<a class="jxr_linenumber" name="47" href="#47">47</a>                  MUTATION_PERCENT,
<a class="jxr_linenumber" name="48" href="#48">48</a>                  PERCENT_TO_MATE,
<a class="jxr_linenumber" name="49" href="#49">49</a>                  MATING_POPULATION_PERCENT,
<a class="jxr_linenumber" name="50" href="#50">50</a>                  CUT_LENGTH);
<a class="jxr_linenumber" name="51" href="#51">51</a>  
<a class="jxr_linenumber" name="52" href="#52">52</a>          <strong class="jxr_keyword">int</strong> sameSolutionCount = 0;
<a class="jxr_linenumber" name="53" href="#53">53</a>          <strong class="jxr_keyword">double</strong> lastSolution = Double.MAX_VALUE;
<a class="jxr_linenumber" name="54" href="#54">54</a>          <strong class="jxr_keyword">while</strong> (sameSolutionCount &lt; MAX_SAME_SOLUTION) {
<a class="jxr_linenumber" name="55" href="#55">55</a>              genetic.iteration();
<a class="jxr_linenumber" name="56" href="#56">56</a>  
<a class="jxr_linenumber" name="57" href="#57">57</a>              <strong class="jxr_keyword">double</strong> thisSolution = genetic.getChromosome(0).getScore();
<a class="jxr_linenumber" name="58" href="#58">58</a>              <strong class="jxr_keyword">if</strong> (Math.abs(lastSolution - thisSolution) &lt; 1.0) {
<a class="jxr_linenumber" name="59" href="#59">59</a>                  sameSolutionCount++;
<a class="jxr_linenumber" name="60" href="#60">60</a>              } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="61" href="#61">61</a>                  sameSolutionCount = 0;
<a class="jxr_linenumber" name="62" href="#62">62</a>              }
<a class="jxr_linenumber" name="63" href="#63">63</a>  
<a class="jxr_linenumber" name="64" href="#64">64</a>              lastSolution = thisSolution;
<a class="jxr_linenumber" name="65" href="#65">65</a>          }
<a class="jxr_linenumber" name="66" href="#66">66</a>  
<a class="jxr_linenumber" name="67" href="#67">67</a>          Integer[] vals = genetic.getChromosome(0).getGenes();
<a class="jxr_linenumber" name="68" href="#68">68</a>          <strong class="jxr_keyword">return</strong> integerToCommand(vals);
<a class="jxr_linenumber" name="69" href="#69">69</a>      }
<a class="jxr_linenumber" name="70" href="#70">70</a>  
<a class="jxr_linenumber" name="71" href="#71">71</a>      <strong class="jxr_keyword">private</strong> List&lt;Command&gt; integerToCommand(Integer[] vals) {
<a class="jxr_linenumber" name="72" href="#72">72</a>          List&lt;Command&gt; cmds = <strong class="jxr_keyword">new</strong> ArrayList&lt;Command&gt;();
<a class="jxr_linenumber" name="73" href="#73">73</a>          <strong class="jxr_keyword">for</strong> (Integer val : vals) {
<a class="jxr_linenumber" name="74" href="#74">74</a>              cmds.add(Command.values()[val]);
<a class="jxr_linenumber" name="75" href="#75">75</a>          }
<a class="jxr_linenumber" name="76" href="#76">76</a>          <strong class="jxr_keyword">return</strong> cmds;
<a class="jxr_linenumber" name="77" href="#77">77</a>      }
<a class="jxr_linenumber" name="78" href="#78">78</a>  
<a class="jxr_linenumber" name="79" href="#79">79</a>      List&lt;Integer&gt; randomChromosome() {
<a class="jxr_linenumber" name="80" href="#80">80</a>          List&lt;Integer&gt; representation = <strong class="jxr_keyword">new</strong> LinkedList&lt;Integer&gt;();
<a class="jxr_linenumber" name="81" href="#81">81</a>          Random random = <strong class="jxr_keyword">new</strong> Random();
<a class="jxr_linenumber" name="82" href="#82">82</a>          <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; GENE_SIZE; i++) {
<a class="jxr_linenumber" name="83" href="#83">83</a>              representation.add(random.nextInt(4));
<a class="jxr_linenumber" name="84" href="#84">84</a>          }
<a class="jxr_linenumber" name="85" href="#85">85</a>          <strong class="jxr_keyword">return</strong> representation;
<a class="jxr_linenumber" name="86" href="#86">86</a>      }
<a class="jxr_linenumber" name="87" href="#87">87</a>  }
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